var CMBackgroundLayer = cc.Layer.extend({

    _sptBg     : null,
    
    ctor : function(){

        this._super()

        this.initBackground();

    },

    initBackground : function(){
    	
    	this._sptBg = new cc.Sprite(res.cm_menu_png, cc.rect(0, 0, 640, 960));
    	
        this._sptBg.attr({
            anchorX : 1,
            anchorY : 1,
            x: 640,
            y: 960
        });
        this.addChild(this._sptBg);
        
    }
});